Vitreous furnace.



H. STAPELMANN & J. `lUCH.

VITREOUS FURNACE. v APPLICATIQN HL'ED xuLY 22. 1914.

1,170,575'. Patented Feb. 8,1916.

JIJUCH. H. JTAPHMA/vu TED STATES HERMAN STAPELMANN ANI) J ULIUS JUCH, OENEWARK, OHIO.

VITREOUS FURNACE.

` invented certain new and useful Improveas is clearly indicated in thedrawings, and

ments in Vitreous Furnaces, of which the following ,is a specilication.reference being had to the accompanying drawings.

This invention relates to furnaces and the like for the manufacture ofvitreous compositions, and morev in particular to means for drawing olfthe lsame in their molten state. Y

@ne of the objects of this invention is to provide means for a furnacewhich will permit molten material from the same to be drawn off in aclean stream, and without scum mixed therewith.'

Avfurther object is to provide such means with an arrangement forpermitting it to be readily inserted into afurnace, and into moltenmaterial, and in such a way that the most desirable part of the materialwill tend to flow into the spout.

Another object is to provide such means, with end -portions which willbe especially designed to prevent the ingress of undesirable materialinto the spout.

0th er objects will become apparent as the invention is more fully setforth.

ln the appended drawings which show a modification of this invention:Figure l is a perspective phantom view of an embodiment of thisinvention.- Fig. 2 is a longitudinal sectional view of the embodiment.Fig. 3 is a plan view of the embodiment, Figs. l and 5 are transversesectional views.

Similar reference characters -refer to similar parts throughout thedrawings.`

n the construction shown. the reference character 1 represents the wallof a furnace which is provided with an opening 2 for a spout 3. Thespout is provided with a groove or channel 4 .near its upper portionthis channel is preferably'rounded andrestricted at its bottom. Thechannel runs longitudinally through the spout or spout Specication ofLetters Patent.

Patented Feb. 8, 1916.

Application filed July 22, 1914. Serial No. 852,499.

block, as it may be termed, and runs through to one end, the drawing-offend, but stops some appreciable distance from the other or furnace end.

Apassage 5, transversely and downwardly extending through the block,connects the channel with the bottom of the block. The block is ofsuclrdimensions that its upper surface will be above the level of themolten material in the furnace. In this way the molten material can onlyflow out through the spout by following a path to the bottom of theblock, thence up through the passage 5, thence along the channel 4 andout of the open end 6 of the same.

It will .be noted that only the cleaner molten material will go into thespout, the scum beingA prevented from doing so by reason of its being onthe upper surface of the fluid, and the sludge being settled on thebottom of the furnace. -Thus the flow in the spout will be always cleanand that taken out will be more satisfactory than without such anarrangement. The channel portion over the passage being in the furnacethe fluid therein will be kept hot and with an veven pressure upon it.

While but one form of the invention is f shown in the drawing it is notdesired to limit it to that particular form or in .any other Wayotherwise than limited by the prior art, as many other constructions can'be made without departing from the principles 4of this invention andcoming Within the scope of the appended claim.

We claim:

ln combination with a furnace having'a rectangular opening, arectangular prismatic spout block insertible in and filling the opening,said spout having a longitudinally grooved open duct in itsupper surfacepor-A tion and extending from the outer end of the block to a point awayfrom the inner end of the block, said duct having its lower portion ordepth arranged below the normal level of the material melted in thefurnace,

and its'uppor and open portion above and accessible to inspection, aduct through the block extending from the inner end portion of the'groove duct toa point 'below the our signatures in the presence of twowitscum line of the material in the' furnace, messes.

l said ducts being disposed' inthe block Where- HERMAN STAPELMANN.

by the flow of molten material through the y J ULIUS J UGH. 5 same 'maybe controlled by moving thebloek Witnesses:

horizontally inthe opening. JOSEPH RENz,

ln' 'testimony whereof We hereunto affix J. W. Hmzsmr.V

